Hi,a few questions to find out what can be the problem:what is the sample rate?what is the audio buffer size?what is the Spark project?Is it also occurring in standalone?From where do you take this CPU load (Spark CPU meter, Ableton CPU meter, Activity Monitor)?

what is the sample rate? 4,100what is the audio buffer size? 520 sampleswhat is the Spark project? Vintage Spark Is it also occurring in standalone? 20% in standalone (or one bar)From where do you take this CPU load (Spark CPU meter, Ableton CPU meter, Activity Monitor)? from Ableton CPU meter